DK2476255T3 - Accelerationsteknikker til distortionsgradsoptimeret kvantisering - Google Patents
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Claims (12)
1. Fremgangsmåde til udvælgelse af en kodningsfunktion og et kvantiseringsparameter til en billedkodningsenhed, der skal kodes og kvantiseres i en billedkodningsproces, hvilken fremgangsmåde omfatter: (a) udførelse af en første kvantiseringsproces (408) med en første type kvantiseringsteknik under evaluering af M mulige kodningsfunktioner; (b) baseret på den første kvantiseringsproces (408), udvælgelse af Mi bedste kodningsfunktioner ifølge et foruddefineret kodningskriterium, hvor M > Mi > 1; (c) efter at trin (a) og (b) er udført for hver af de M mulige kodningsfunktioner, udførelse af en anden kvantiseringsproces (430) med en anden type kvantiseringsteknik for de Mi bedste kodningsfunktioner; og (d) udvælgelse af en bedste kodningsfunktion (432) baseret på resultaterne af den første kvantiseringsproces (408) og den anden kvantiseringsproces (430); hvor den første kvantiseringsproces (408) har den første type kvantiseringsteknik, der er en hurtigere kvantiseringstype, og hvor den anden kvantiseringsproces (430) har en anden type kvantiseringsteknik, der er en langsommere kvantiseringstype; hvor den første kvantiseringsproces (408) og den anden kvantiseringsproces (430) gentages for hvert kvantiseringsparameter.
2. Fremgangsmåde ifølge krav 1, hvor informationer om positionerne og størrelser af de kvantiserede transformationskoefficienter af ét eller flere kvantiseringsparametre anvendes under processerne med kvantisering af efterfølgende kvantiseringsparametre.
3. Fremgangsmåde ifølge krav 1, hvor den anden kvantiseringsproces (430) kun anvendes til én bedste kodningsfunktion blandt de M mulige kodningsfunktioner, eller på en ækvivalent måde, Mi = 1.
4. Fremgangsmåde ifølge krav 1, hvor det bedste resultat vælges (432) ved sammenligning af i) værdi af det foruddefinerede kodningskriterium for en rest kvantiseret med den første kvantiseringsproces (408) med ii) værdi af det foruddefinerede kodningskriterium for en rest kvantiseret med den anden kvantiseringsproces (430); og udvælgelse af den rest, der giver den bedste værdi af det foruddefinerede kodningskriterium.
5. Fremgangsmåde ifølge krav 1, der endvidere omfatter omkodning af billedkodningsenheden, efter at den optimale kodningsfunktion er blevet valgt efter den initiale kodningsproces.
6. Fremgangsmåde ifølge krav 5, hvor den anden kvantiseringsproces (430) udføres, mens omkodning af billedkodningsenheden foretages.
7. Fremgangsmåde ifølge krav 6, hvor omkodning omfatter evaluering af optimale forudsigelsesfunktioner.
8. Fremgangsmåde ifølge krav 7, hvor et undersæt af forudsigelsesfunktioner evalueres under omkodningsprocessen.
9. Fremgangsmåde ifølge krav 8, hvor undersættet af forudsigelsesfunktioner evalueret under omkodningsprocessen vælges baseret på de optimale forudsigelsesfunktioner valgt efter den initiale kodningsproces.
10. Koder (180) til kodning af et videosignal ifølge fremgangsmåden ifølge krav 1.
11. Computerlæsbart medium, der indeholder et sæt instruktioner, som bevirker, at en computer udfører fremgangsmåden ifølge krav 1.
12. Anvendelse af fremgangsmåden ifølge krav 1 til at kode et videosignal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US24113009P | 2009-09-10 | 2009-09-10 | |
| PCT/US2010/048029 WO2011031692A2 (en) | 2009-09-10 | 2010-09-07 | Speedup techniques for rate distortion optimized quantization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK2476255T3 true DK2476255T3 (da) | 2018-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK10763484.2T DK2476255T3 (da) | 2009-09-10 | 2010-09-07 | Accelerationsteknikker til distortionsgradsoptimeret kvantisering |
Country Status (11)
| Country | Link |
|---|---|
| US (4) | US9729888B2 (da) |
| EP (5) | EP2476255B1 (da) |
| JP (1) | JP5579852B2 (da) |
| CN (1) | CN102648627B (da) |
| DK (1) | DK2476255T3 (da) |
| ES (1) | ES2681209T3 (da) |
| HK (4) | HK1257746A1 (da) |
| HU (1) | HUE039661T2 (da) |
| PL (1) | PL2476255T3 (da) |
| PT (1) | PT2476255T (da) |
| WO (1) | WO2011031692A2 (da) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9888817B2 (en) | 2014-12-17 | 2018-02-13 | Omachron Intellectual Property Inc. | Surface cleaning apparatus |
| DK2476255T3 (da) | 2009-09-10 | 2018-08-06 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Accelerationsteknikker til distortionsgradsoptimeret kvantisering |
| KR20110068792A (ko) | 2009-12-16 | 2011-06-22 | 한국전자통신연구원 | 적응적 영상 부호화 장치 및 방법 |
| KR101885258B1 (ko) * | 2010-05-14 | 2018-08-06 | 삼성전자주식회사 | 비디오 신호의 부호화 방법과 그 장치, 및 비디오 복호화 방법과 그 장치 |
| AU2011264896B2 (en) | 2010-06-10 | 2015-08-27 | Interdigital Vc Holdings, Inc. | Methods and apparatus for determining quantization parameter predictors from a plurality of neighboring quantization parameters |
| US8824558B2 (en) * | 2010-11-23 | 2014-09-02 | Mediatek Inc. | Method and apparatus of spatial motion vector prediction |
| US20120189052A1 (en) * | 2011-01-24 | 2012-07-26 | Qualcomm Incorporated | Signaling quantization parameter changes for coded units in high efficiency video coding (hevc) |
| US9438906B2 (en) | 2011-03-03 | 2016-09-06 | Sun Patent Trust | Method of encoding an image into a coded image, method of decoding a coded image, and apparatuses thereof |
| US20130022108A1 (en) * | 2011-06-30 | 2013-01-24 | General Instrument Corporation | Quantization parameter derivation from qp predictor |
| EP3264764B1 (en) | 2011-07-12 | 2019-04-10 | NEC Corporation | Decoding method and decododer for quantization parameter decoding for video decoding |
| WO2013030833A1 (en) | 2011-08-29 | 2013-03-07 | I.C.V.T. Ltd. | Controlling a video content system |
| WO2013111126A2 (en) * | 2012-01-23 | 2013-08-01 | I.C.V.T Ltd. | Method and system for controlling video frame encoding |
| US11039138B1 (en) | 2012-03-08 | 2021-06-15 | Google Llc | Adaptive coding of prediction modes using probability distributions |
| CN102625101B (zh) * | 2012-03-16 | 2014-02-12 | 北京航空航天大学 | 一种基于随机像素法的h.264帧间预测模式快速选择方法 |
| US10085024B2 (en) | 2012-04-13 | 2018-09-25 | Qualcomm Incorporated | Lookup table for rate distortion optimized quantization |
| US9077965B2 (en) * | 2012-10-12 | 2015-07-07 | Mediatek Inc. | Method and apparatus for performing lossy image compression through source quantization and lossless compression kernel, and related method and apparatus for image decompression |
| FR2998078A1 (fr) * | 2012-11-09 | 2014-05-16 | I Ces Innovative Compression Engineering Solutions | Procede pour limiter la memoire necessaire a l'enregistrement d'un fichier audio, image ou video cree grace a un appareil dans ledit appareil. |
| CN104104947B (zh) * | 2013-04-02 | 2016-10-19 | 腾讯科技（深圳）有限公司 | 一种视频编码方法和装置 |
| KR102161741B1 (ko) * | 2013-05-02 | 2020-10-06 | 삼성전자주식회사 | ＨＥＶＣ(high efficiency video coding)에서 코딩 유닛에 대한 양자화 파라미터를 변화시키는 방법과 장치, 및 시스템 |
| GB2519070A (en) | 2013-10-01 | 2015-04-15 | Sony Corp | Data encoding and decoding |
| TW201519637A (zh) * | 2013-11-12 | 2015-05-16 | Univ Nat Taiwan | 位元率-誤差最佳化量化方法 |
| US9794575B2 (en) * | 2013-12-18 | 2017-10-17 | Magnum Semiconductor, Inc. | Apparatuses and methods for optimizing rate-distortion costs in video encoding |
| CN104954787B (zh) * | 2014-03-27 | 2018-03-23 | 浙江大华技术股份有限公司 | Hevc帧间预测模式选择方法及装置 |
| JP6497100B2 (ja) * | 2015-02-09 | 2019-04-10 | 沖電気工業株式会社 | 映像符号化装置、方法及びプログラム |
| US10356422B2 (en) * | 2015-03-06 | 2019-07-16 | Qualcomm Incorporated | Fast rate-distortion optimized quantization |
| JP6502753B2 (ja) | 2015-06-08 | 2019-04-17 | キヤノン株式会社 | 画像符号化装置、画像処理装置、画像符号化方法 |
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